Diaphragm.



J. H. KINBALY.'

DIAPHRAGM.

APPLICATION FILED/H0118, 1910.

Patqnted Apr. 4, 1911.

Ike 675552 JOHN H. KINEALY, 0F FERGUSON, MISSOURI.

DIAPHRAGM.

Specification of Letters Patent.

Patented Apr. 4, 1911.

Application filed November 18, 1910. Serial No. 593,019.

To all whom it may concern:

- Be it known that I, JOHN H. KINEALY, a citizen of the United States,residing at Ferguson, in the county of St. Louis and State of Missouri,have invented a new and useful Improvement in Diaphragms, of which thefollowing is a full, clear, and exact specification, reference being hadto the accompanying drawings, which form a part thereof.

My invention relates to diaphragms, particularlymetal diaphragms, usedin connection with thermal and other motors and other devices such aswater, steam, and gas regulators where it is desirable to use adiaphragm that is capable of considerable motion and that'iequires onlya slight pressure to make it move.

.The object of my invention is to provide a diaphragm that can bestamped or ressed out of a single piece of metal; and a rther object ofmy invention is to provide a diaphragm that will be of low cost and yetwhich will be capable of considerable move-v ment without injuig; I

My invention is 11y shown in the accompanying drawings where similarletters are used to desi ate similar parts.

Figure 1 1s a view of one form of my im proved diaphragm forming theupper part of a motor operated b internal pressure; Fig. 2 is a verticalsection of 1 on the line 22; Fig. 3 is a vertical section of Fig.

1 on the line 3--3; and Fig. 4 is aview of another form of my diaphragm"applied tothe same motor used in Fig. 1.

Referring to the figures, A represents wings which form the diaphragm,each of which has a straight attached to thefsides about which it mayturn through a small angle. 0 represents corrugations or deprese u e Bby which it is sions whose walls are flexible, lying between theadjacent edges (1? and a. of the wings.

.D is a central piece, lying inside of the inner ends or edges of thewings A.

"E represents depressions or corrugations whose walls are flexible,lying between the edges 42 of the central piece D and the inner edges aof the wings A.

The straight edges B of the wings are arranged with respect to oneanother so that they form a polygon as illustrated in the figures of thedrawings where the edges B form a square; and the adjacent edges a and aof adjacent wings diverge from the of the motor and corners of thepolygon toward the center thereof. The corrugations C increase in depthfrom the corners of the polygon toward the center thereof, and where thecorrugations or depressions C meet the corrugatlons 0r depressions E thedepressions G are preferably of the same depth as the de ressions E.

he wings A and the central pieee Dma be made of stiff, rigid materialprovide however, the strai ht edge B of each wing is so arranged thatthe wing may turn about it through a small angle. The walls or sidesofthe depressions C and E must, however, be sufficiently flexible asto'give'when the wings are made to turn about the straight sure. Whenthe fluid flows from its source of supply through the pipe N into'themotor it presses against the sides and bottom thereof and also againstthe diaphragm which forms the top of the motor, as shown in Fig.

- 2. Because of the internal pressure exerted on them the wings A aremade to turn about the straight edges B and the diaphragm is raised andassumes the position indicated by the dotted lines in Fig. 2. The wallsof the depressions E give so as to allow the inner edges a of the wingsto be separated some what from the edges (1 of the central piece D; andthe adjacent edges a and a of adj acent wings separate somewhat and theflexible walls of the depressions G give so as to allow this separationof the ad acent ed es of the wings. When the pipe N is isconnected fromthe source of supply of fluid under pressure, the pressure inside of themotor is reduced and the diaphragm returns to its original lines in Fig.2.

It is evident that my invention may be embodied in a diaphragm havingany numposi'tion shown by the full ber of Wings, provided always thateach wing has a straight edge about which it may.

turn.

What I claim as new and desire to secure by Letters Patent, is:

1. In a diaphragm, a plurality of wings each of which has a straightedge about each of which has a straight edge about which it may turn, acentral piece, and a flexible member connecting-the wings and thecentral piece, substantially as described.

3.*Ine a dia ragm, a plurality of wings each of which has a straightedge about which it may turn, said straight edges being arranged w1threspect to one another so as to form a polygon with the wings lyinginside thereof and the adjacent e ges o the wings diverging from thecorners of the polygon toward the center thereof, and a flexible memberconnecting said wings in such .a way that they may simultaneously turneach about its straight edge, substantially as described.

4. In a diaphragm a plurality of Wings each of which has a straight edgeabout i which it may turn, said straight edges be ing arranged withrespect to one another so "as to form a polygon with the wings l'inginside thereof and the-adjacent edges 0 the wings diverging from thecorners of the 1 polygon toward the center thereof, a central piece, anda flexible member connecting the wmgs-and the central piece,substantially as desclibed. d .h 1 1- r 5. 11 av ia ragm a p ura ity ofwings each of whic has 5 straight edge about which it may turn, saidstraight ed es being arranged with respect to one anot er so as toformapolygon with the wings lying inwings diverging edges of the wings,

wings diverging from the corners of the polygon toward the centerthereof, corru'ga-- tions connecting the adjacent edges of the i wings,the depth of 'sald corrugations increasing from the corners of thepolygon toward the center, a central piece, and corrugations between thecentral piece and the inner edges of the wings, substantially asdescribed. 1 f

6. In a dia hra a lura ity 0 Wings each of whic hii s a sti aight edgeabout which it may turn', said stralghtedges being arranged with respectto one another so as to form a polygon with the wings lyin insidethereof and the "adjacent edges 0 the from the corners of the polygontowar tral piece having the same polygonal shape .as the polygon formedby the straight edges of the wings and lying inside of the inner edgesof said wings, corrugations between the wingsandthe sides of the centralpiece, and corrugations connectin the adjacent the deptfi the corners ofthe polygon toward the center until they'lmeet with and have the samedepth as the corrugations between the central piece and theinner edgesof the wings, substantially as described.

In testimony whereofI have signed my Tmmnsa SUENIL.

the center thereof, a cenof said corru- 1 name to this specification inthe presence of

